Mold.



' v PATENTED MAY 26,1903. J. B. STEIN.

MOLD. APPLICATION FILED BEPT. 23, 1902.

No. $29,439 j PATENTBD'MAIY 26, 1903. J. B. STEIN.

MOLD.

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Patented May 26, 1903. I

PATENT OFFICE.

MOLD.

SPECIFICATION forming part of Letters Patent No. 729,439, dated May 26,1903. Application filed September 23,1902. Serial No 587. (No model.) I

To all whom it may concern:

Be it known that 1, JOHN 13.8mm, a citizen of the United States,residing at Morgantown, in the county of Monongalia and State of WestVirginia,'have invented new and useful Improvements in Molds, of whichthe following is a specification.

This invention relates to molds of that kind which are particularlydesigned for the production of glass collar-buttons; and one object ofthe invention is to provide improved means for removing the moldedarticles from the mold after the molding operation is completed.

A further object of the invention is to provide improved means forholding the mold in closed positionduring the molding operation and forpermitting. themold-to be readily opened after thelmolding operation iscompleted for the purpose of removing the molded articles containedtherein;

Other objects and advantages of the invention will be apparent from thefollowing detail description, and the novel features of the inventionwill beparticularly pointed out in i the claims succeeding suchdescription.

In the accompanying drawings, forming a part of this specification,Figure 1 is a perspective view of the mold, showing the vari- Fig. 2 isa vertical section of the mold with the parts thereof in closedposition. Fig. 3 is a ous parts thereof in separate position.

cross-section of the mold, the sections thereof being shown slightlyopened and the extractor elevated slightly above the mold-sections witha molded collar-button suspended t'here- Fig. 4 is a top plan view ofthe mold, showing the extractorseated in the recesses in the raisedportions 'of the mold-sections. Fig. 5 illustrates a" modified mea11sof-hold-' ing the mold-sections-.in closed2 position dur-j ing themolding operation.

Like reference-numerals indicate like parts in the different views. 7

The mold 1 is separated into two longitudinal sections, which are hingedto each other at one end of the.mold. At the opposite end of the moldeach of. the mold-sectionsis provided with a handle 2 for openingan dclosing themold. On its upper surface the mold 1 is providedwith araised portion 3. This raised portion 3 is centrally recessed, as

passage 6.

shown at 4, to provide the marginal flanges 5. The recess 4 is extendedthrough the end walls of the raised portion 3 to provide the Thedividing-line of the mold extends through the center of the recess 4,and along the dividing-line are situated the die depressions 7. One-halfof each of the die depressions 7 is located in the inner wall of each ofthe mold-sections, andthe two halves of each die depression registertogether when the mold is closed. The die depressions 7 at their upperends open into or communicate with the recess...4=of the raised portion3 on the upper surfaceofthe mold. i

The reference-numeral 8 designates an extractor which is designed forthe purpose of extracting the molded collabbutt'ons or other articlesfrom the die depressions 7 after the molding operation is' completed;This extractor 8 is provided with the handle 9 at one end andthe tongue01'- tenon 10 at its other end. Fromend to end of the extractor 8extends a series ofapertures 11', which are slightly dished: at theirupper ends, as shown at 12. Theextrac'tor'8..fits-,into..the recess 4 inthe raised portion 3 of the mold when the mold is in closed position,and the handle 9 of the extractor passes through the passage 6 at oneend of the recess 4 in the raised portion 3, while the tongue 10 of theextractor fitsinto the passage 6 at the other end of the raised portion3 on the upper-surfaceofi the moldfor'thepurpose of holdingthe tw'olsec-:.tions or' halves of the mold inclos'ed-position during the molding,operation.

It willibe seen that the vertical slot throughthe moldri'n'g '13 isr'abbeted around thevertical" slot :throu gh:itscentei'yasshown at25';'.for ,the re- 1 ception of-the raisedpo'rtion 3 with'itsflanges '5.Atbn-eiof'iitsehil'sflthe mold-ring 13 is notched on its undersurface,.as show n;at 14, for the reception of the handlef'Q of theextractor 8. It Willbe observed th'atthetongue 10 on the extractor 8extends out flush with the end of the raised portion3..on the uppersurface of the mold. .So it is notnecessary to provide a notch in themold-ring 13 for the reception of the tongue 10. The mold-ring 13 isprovided with a suitable handle 15 to facilitate its removal from theraised portion 3 of the mold when it is desired to separate the halvesor sections of the mold to remove the molded articles contained therein.On its upper surface around the vertical slot through its center themold-ring 13 is preferably beveled, as shown at 16, to facilitate theintroduction of the plunger, which will now be described.

In the drawings I have illustrated one form of plunger which is adaptedto be used in connection with my improved mold. This plunger is providedwith the plunger-head 17, having the shoulder 18, adapted to abutagainst the upper surface of the mold ring when theplungerisfullydepressed. Itisalsoprovided with the shank 19 and thecrown-piece 20.

The operation of my improved mold is as follows: The two halves orsections of the mold are first brought together, and the extractor 8 isplaced in the recess 4 of the raised portion 3 on the upper surface ofthe mold. The mold-ring 13 is then fitted down over the raised portion 3of the mold so that the handle 9 of the extractor 8 passes through thenotch 14 in the mold-ring l3. Molten glass is then introduced throughthe central slot of the mold-ring 13 and allowed to flow through theapertures 11 of the extractor 8 into the die depressions of the mold.The mold is then introduced beneath the plunger-head 17 of the plunger,(which may be operated by an ordinary glass-press,) and the plunger isallowed to descend into the vertical slot through the mold-ring 13. Thisaction of the plunger efiectually forces the molten glass into the diedepressions of the mold. The plunger is then withdrawn from the slot ofthe mold-ring, and the mold-ring is removed from the raised portions 3of the mold. The two halves or sections of the mold are then separatedby means of the handles 2, and the extractor 8 is removed by giving thehandle 9 a sidewise movement to loosen the molded collar-buttons fromthe die depressions of the mold. It will be found that thecollar-buttons are all attached to the extractor 8 by small nibs ofglass, which extend through the dished apertures of the extractor. Themolded collar-buttons are easily and quickly removed from the extractorby striking them with any suitable instrument, which causes the smallnibs of glass that extend through the extractor to break and release thebuttons from the extractor. It is now only necessary to file or smoothoff the small rough projecting portion which is left on the base of eachcollar-button by the breaking of the glass nib which extends through theextractor.

In Fig. 5 of the drawings I have illustrated an additional means ofclamping the moldsections together during the molding operation. Thisadditional clamping means consists of the approximately U-shaped clip21, provided with the hearing or contacting ends 22 22 and the enlargedor grip portion 23. In using this clip 21 the mold-sections are closedtogether, and the bearingends of the clip are applied to the oppositesides of the mold, as shown by the dotted lines in Fig. 4, the enlargedor grip portion of the clip being supported by the handle 2 of the mold.It will be observed that the opposite sides of the mold are slightlybeveled at the points where the bearing ends 22 22 of the clip 21 restwhen said clip is applied to the mold to facilitate the application ofthe clip to the mold.

The clip 21 is adapted to aid the mold-ring 13 in holding themold-sections closed during the molding operation against any strainwhich may result from the descent of the plunger and the consequentpressure of glass within the die depressions of the mold. It is alsoadapted to hold the mold-sections in closed position before themold-ring is applied to the mold and while the extractor is being placedwithin the recess in the raised portion of the mold. It is furtheradapted to take the place of the key usually employed with molds of thischaracter for holding the mold-sections in closed position.

It will be understood, of course, that any number of die depressions maybe employed in the mold and that these die depressions may have anydesired form to correspond with the shapes of the differentcollar-buttons which it is desired to produce. In the drawings I haveillustrated a number of different forms of die depressions. It will alsobe understood that the mold may be made double without departing fromthe spirit of my invention. Nor do I desire to be limited to anyparticular material from which the collar buttons or other articles areto be molded nor to any particular kind of glass, for I contemplatemolding collar-buttons from glass of various different colors.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is-

1. The combination with a sectional mold having a raised portion thereonand a plurality of die depressions therein, an extractor provided with aplurality of apertures registering with said die depressions and havinga handle, and a mold-ring fitted over said raised portion and saidextractor and having acut-away portion to receive the handle of saidextractor.

2. The combination with the sections of a divided mold, provided withraised portions on the upper surfaces thereof, said raised portionshaving recesses therein, and a plurality of die depressions opening intosaid recesses, of an extractor adapted to fit into said recesses, saidextractor having a plurality of apertures adapted to register with saiddie depressions, and a mold-ring adapted to fit over the raised portionsof said mold-sections, and having a vertical slot adapted to receive aplunger.

3. The combination with the sections of a divided mold having a recessin its upper surface, and having a plurality of die depressions openinginto said recess, of an ex- In testimony whereof I have hereunto settractor fitted into said recess, said extractor my hand in presence oftwo subscribing withaving a handle that projects through a cutnesses.away portion in the upper surface of said 5 mold and having a pluralityof apertures Witnesses:

therein that register with said die depres- CHAS. S. SHAFFER,

JOHN B. STEIN.

sions. BOYCE W. REYNOLDS.

